home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
OS/2 Shareware BBS: 10 Tools
/
10-Tools.zip
/
octa21eb.zip
/
octave
/
SCRIPTS.ZIP
/
scripts.fat
/
general
/
randperm.m
< prev
next >
Wrap
Text File
|
1999-04-29
|
1KB
|
41 lines
## Copyright (C) 1998 John W. Eaton
##
## This file is part of Octave.
##
## Octave is free software; you can redistribute it and/or modify it
## under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2, or (at your option)
## any later version.
##
## Octave is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with Octave; see the file COPYING. If not, write to the Free
## Software Foundation, 59 Temple Place - Suite 330, Boston, MA
## 02111-1307, USA.
## usage: randperm (N)
##
## Return a row vector containing a random permutation of the
## integers from 1 to N.
## Author: "James R. Van Zandt" <jrv@vanzandt.mv.com>
## Adapted-By: jwe
function retval = randperm (n)
if (nargin == 1 && is_scal (n) && floor (n) == n)
if (n > 0)
[junk, retval] = sort (rand (1, n));
else
error ("randperm: argument must be positive");
endif
else
usage ("randperm (n)");
endif
endfunction